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A259249
Number of (n+1)X(7+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0011 or 0111
1
1353, 15613, 159168, 1803859, 18970267, 211569948, 2259371001, 24946035357, 268635598788, 2948447364239, 31900157480147, 348917447759080, 3785118935837593, 41318554169121573, 448913396152129472
OFFSET
1,1
COMMENTS
Column 7 of A259250
FORMULA
Empirical recurrence of order 54 (see link above)
EXAMPLE
Some solutions for n=3
..0..1..1..1..1..1..0..0....1..1..0..0..1..0..0..1....0..1..0..0..1..0..1..0
..0..1..0..0..0..1..0..0....0..1..1..1..1..1..1..1....0..1..1..1..1..1..1..1
..1..1..1..1..1..1..1..1....0..1..0..0..0..1..0..0....0..1..0..1..0..0..0..1
..1..0..0..0..1..0..0..0....1..1..1..1..1..1..1..1....0..1..1..1..0..0..0..1
CROSSREFS
Sequence in context: A035763 A107559 A056103 * A215865 A172379 A192319
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 22 2015
STATUS
approved